When people are really suffering, and we know they're suffering, that question can be a very difficult one. Inadvertently, I think without anyone meaning it, it communicates a lack of empathy.

When looking for a life partner, my advice to women is date all of them: the bad boys, the cool boys, the commitment-phobic boys, the crazy boys. But do not marry them. The things that make the bad boys sexy do not make them good husbands.

We're focused on doing one thing incredibly well. If you look at other companies, all of these companies are doing a lot of different things but we're still, as we grow, doing exactly one thing.

It turns out that a husband who does the laundry, it's very romantic when you're older. And it's hard to believe when you're younger. But it's absolutely true.

Let's acknowledge that men reach for opportunities more quickly and more easily than women. So often as managers, we give the job to whoever starts solving the problem, to whoever jumps in. Since we know men will jump in faster than women in so many circumstances, we have to slow down and encourage more women to sit at more tables.

Men can comfortably claim credit for what they do as long as they don't veer into arrogance. For women, taking credit comes at a real social and professional cost.

I hope you find true meaning, contentment, and passion in your life. I hope you navigate the difficult times and come out with greater strength and resolve. I hope you find whatever balance you seek with your eyes wide open. And I hope that you - yes, you - have the ambition to lean in to your career and run the world. Because the world needs you to change it.